Assigkoe to the



(No Model.)v

l11. WYMAN.

LOOM DRIVING GEAR.

UNTTED STATns PATENT HORACE NYMAN, OF VOROESTEB, MASSACHUSETTS, ASSIGNORTO THE OROMPTON LOOM WORKS, OF SAME PLACE.

LOOM DRIVINGGEAR.

SPECIPICATIO forming part of Letters Patent No. 381,518,

Application filed July 28, 1887.

To @ZZ whom' 17mg/ concern.-

Be it known that I,Honaon Wyman, of I Voreester, in the county of-vVorcester and State of Massachusetts, have invented an Improvement inLoom DrivingGears, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters on thedrawings representing like parts.

This invention has for its object to drive the main cross-shafts of aloom in the most steady manner possible, notwithstanding irregularity inthe resistance to be overcome by the said shafts, and at the same time Ihave also had in view such a construction and arrangement of the gearingas to gain the maximum of power and to economize space. l

In this my invention I am enabled to place the driving-shaft of theloom, or the shaft employed to rotate the two cross-shafts, at a greaterdistance than usual from the mill or counter-shaft arranged along thefloor and employed to actuate the driving-belt of the machine, evena'slight increase in distance from the door enabling the belt to workwith greater efficiency.

By the use of two small bevel-gears and a larger toothed or spur gearand the pinion, as shown, to convey power from the drivingshaft to oneof the usual crossshafts of the loom located at right angles to it,instead of employing a small bevel-gear driving a large beveled gearfast on one of the usual camshafts, as now commonly done, it is possibleto do away with the side-thrust exerted against the said large beveledwheel, the said side` thrust being increased with the strain put on theshaft to which the large bevel-wheel is attached.

In some instances the spring of the large bevel-wheel, due toside-thrust and strain, is such as to greatly lessen the efficiency ofthe loom.

The smaller the diameter of bevel-wheels the less the sidethrust of oneon the other, and the more nearlylike in diameter the bevelwheels inmesh one with the other the less the liability of slipping the one withrelation to the other.

Figure 1, in side elevation,

represents a sufdated .April '17, 1888.

Serial No. 245,509. (No model.)

icient portion of a loom to illustrate my in vention; and Fig. 2, a topor plan view of Fig. l.

'Ihe loom-frame A has at its end suitable bearings in stands A2 b3 forthe drivingshaft A, extended transversely of the machine, the said shaftbeing provided with a friction-pulley to receive the driving-belt. Thesaid pulley may, and preferably will, be such as shown in UnitedStatesIJatent No. 363,507.

The driving-shaft A is provided at its inner end with a smallbevel-pinion, b, which engages an intermediate bevelgear, b', secured toa pinion, b*, free to rotate on a short stud, b2, having suitablebearings in both the frame and the stand b3. The bevel-pinion b4 engagesthe teeth of and rotates the toothed gear b5, fast on the usualcam-shaft, ZJ, the said gear b5 engaging the gear bl, of equal diameter,fast to the end of the crank or lay shaft 68 and rotating it at the samespeed as the cani-shaft.

By introducing the intermediate bevel and spur gears, b' and b4, betweenthe bevel-gear b and toothed wheel b5, it is possible to gain power andat the same time rotate the driving-shaft A6 at a much faster speed thanusual as compared with the shafts b and bg, and even with an addition inspeed-as for instance, as six to one-it is possible to keep the partswithin practical limits oi'spaee, and with gears of the diameter shownand arranged as shown end-thrust is practically done away with.

The construction and arrangement of parts shown and described enable thedriving-shaft to be placed at any desirable position between the shaftsbG bs, thus elevating it away from the loor farther than in other usualplans wherein a small bevel-gear on a drivingshaft engages a largebevel-wheel on the lower crossshaft, as be.

I claim- 1. The two shafts t and b3, with their gears b5 and bl, ofequal diameters, and the drivingshaft A5, provided with a driving-pulleyand a pinion, as b, combined with the intermediate bevel-gear, b',v andspur-gear bt, connected together and mounted upon a stud, thecombination being and operating substantially as and for the purposedescribed.

2. The driving-shaft A, its driving-pulley and bevel-pinion b,bevel-wheel b', and its attache'd spur-pinion b4, stud b2, and the mainbined with the intermediate bevel. and spur frame having an attachedstand, as A2, progear, whereby the said driving-shaft may be vided witha box for the driving-shaft, and located at a point between the twoshafts l6 i5 the stand b3, provided with a box for the drivand bl,substantially as described. 5 ing-shaft, and also to support the stud,com- In testimony whereof I have signed my name bined with two shafts, band 118, having gears to this specification in the presence of two subb5and 117 of equal diameter, to operate subseribing witnesses. istantially as described. l 31 The two shafts b6 and b", their gears b5HORACE WYMAN l lo and b', of equal diameter, and a driving-shaft,Witnesses:

A6, provided with a pulley and with a pin- JOHN B. SYME, ion, b, andbearings for the said shaft, oom- JUSTIN A. WARE.

